The Nuclear Waste Management Organization (NWMO) is a Canadian non-profit organization responsible for managing the long-term storage and disposal of nuclear waste in Canada. Established in 2002, the NWMO was created in response to the need for a comprehensive strategy for dealing with the country's used nuclear fuel, which is a byproduct of generating nuclear electricity.
Specified Minimum Yield Strength (SMYS) is a measure used in materials engineering, particularly in the context of structural design and materials specification. It refers to the minimum yield strength that a material must possess, as outlined in relevant standards or specifications. Yield strength is the stress at which a material begins to deform plastically; that is, it starts to exhibit permanent deformation. In practical terms, SMYS is used primarily for metals, especially steel in applications such as pipelines, construction, and manufacturing.
Systainer is a line of stackable, modular storage and transport solutions often used in professional trades, construction, and workshops. Developed by the German company Festool and other manufacturers, Systainers are designed to organize tools, accessories, and materials efficiently. Key features of Systainers include: 1. **Modular System**: Multiple Systainers can be stacked together securely, allowing for customizable storage solutions and easy transportation.
Mechanical vibrations refer to the oscillating motions of mechanical systems. When a mechanical system is disturbed from its equilibrium position, it may execute periodic motions around that position, and these motions are known as vibrations. Vibrations can occur in various forms, including linear or rotational, and may involve one or multiple degrees of freedom.
"Collision" can refer to different concepts depending on the context in which it is used. Here are a few common interpretations: 1. **Physics**: In physics, a collision refers to an event where two or more bodies exert forces on each other for a relatively short time. There are different types of collisions, such as elastic collisions (where kinetic energy is conserved) and inelastic collisions (where kinetic energy is not conserved).
The effective potential is a concept used in classical and quantum mechanics, particularly in the context of central force problems, to simplify the analysis of motion. It combines the potential energy of a system with a term that accounts for the angular momentum of a particle moving under the influence of a central force, such as gravity or electrostatic forces.
A concentric reducer is a type of fitting used in piping systems to connect two pipes of different diameters, where the centerline of the pipes remain aligned. The term "concentric" refers to the fact that the smaller pipe's diameter is centered within the larger pipe's diameter. Concentric reducers are typically used in situations where smooth changes in diameter are required to maintain consistent flow characteristics in a pipeline system.
Drucker stability, named after the management theorist Peter Drucker, refers to a concept in fluid mechanics and material science relating to the stability of materials under certain conditions. Specifically, it is often discussed in the context of the stability of elastic materials when subjected to compressive forces. In engineering and materials science, Drucker stability can be assessed through the analysis of yield surfaces and the response of materials to loading conditions.
The arterial input function (AIF) is a critical concept in pharmacokinetics and biomedical imaging, particularly in the context of dynamic contrast-enhanced imaging techniques, such as MRI or PET scans. The AIF describes how a contrast agent or tracer concentration changes over time in the bloodstream after its administration. In the context of imaging, the AIF is used to quantify tissue perfusion and evaluate various physiological and pathological conditions.
Elastic instability refers to a loss of stability in elastic structures when subjected to certain loads or conditions. In the context of structural engineering and material science, it often describes a phenomenon where a structure or material that behaves elastically (i.e., it returns to its original shape after the removal of load) becomes unstable under specific circumstances, leading to a sudden change in deformation or failure.
Kinematic synthesis refers to the process of designing and creating mechanisms that achieve specific motion characteristics or trajectories. It involves the formulation of kinematic chains—sets of links connected by joints—and the determination of their dimensions and configurations to produce desired movements. Key aspects of kinematic synthesis include: 1. **Kinematic Chains**: These are rigid bodies (links) connected by movable pairs (joints), allowing motion. The analysis and design of these chains help determine how they move in relation to one another.
The term "mechanician" generally refers to a skilled worker who specializes in mechanics, particularly in the context of machinery and mechanical systems. This may include design, construction, repair, and maintenance of machines and mechanical devices. Mechanicians often work in various industries, such as manufacturing, automotive, aerospace, and construction.
A truss is a structural framework composed of individual members that are usually arranged in triangular configurations. Trusses are used in various engineering and architectural applications to support loads over a span. The triangulated design provides stability and strength, allowing trusses to efficiently distribute weight and withstand various forces, such as tension, compression, and bending. Trusses are commonly used in a variety of structures, including: - Bridges: Truss bridges utilize the triangular shapes to effectively manage heavy loads and long spans.
Contrast agents, also known as contrast media, are substances used in medical imaging to enhance the visibility of structures or fluids within the body. They are typically used in imaging techniques such as X-rays, computed tomography (CT) scans, magnetic resonance imaging (MRI), and ultrasound. ### Purpose of Contrast Agents 1. **Enhancement**: They help differentiate between different tissues, organs, or blood vessels, making it easier to identify abnormalities, tumors, or other medical conditions.
Aphelion is an open-source software project designed to facilitate the hosting and deployment of web applications. It provides a framework that developers can use to build scalable and maintainable applications with a focus on modularity and flexibility. The software typically includes features like user authentication, RESTful APIs, and integration with various databases and services. Aphelion can also be related to specific domains like game development, enterprise applications, or cloud services, depending on the context in which it is referenced.
Fluorescence image-guided surgery (FIGS) is a medical technique that enhances the visualization of tissues during surgical procedures using fluorescent dyes or markers. This method allows surgeons to identify and differentiate between healthy and diseased tissues more effectively, thereby improving surgical outcomes. ### Key components of FIGS include: 1. **Fluorescent Agents:** Special dyes or markers are administered to the patient prior to surgery.
Health surveys are systematic collections of information about the health status, behaviors, and access to healthcare of individuals within a specific population. They are tools used by researchers, healthcare providers, and policymakers to gather data on various health-related topics, including physical health, mental health, lifestyle factors, disease prevalence, and healthcare usage.
As of my last update in October 2023, there isn't a widely recognized product, company, or concept specifically named "Dextrobeam." It's possible that it could refer to a new product, a technology, or something else that has emerged after that date or is lesser-known within a specific niche.
Digital variance angiography (DVA) is an advanced imaging technique used primarily in the field of medical imaging, particularly in the evaluation of blood vessels and the vascular system. It is a type of angiography that utilizes digital imaging technology to enhance the visualization of blood vessels, making it easier to detect abnormalities such as blockages, stenosis, or malformations.
Dual-energy X-ray absorptiometry (DXA or DEXA) is a medical imaging technique primarily used to measure bone mineral density (BMD). It is considered the gold standard for diagnosing osteoporosis and assessing fracture risk. DXA works by using two different energy levels of X-ray beams to scan the body, typically focusing on the lower spine and hip, which are common sites for osteoporotic fractures.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact